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18 wheeler/pickup truck terminology 101

Long nose: a long nose truck is typically an 18 wheeler with a long nose hood, for example, the freightliner cascadia is a long nose truck

Cabover: a cab over truck can be both pickup and 18 wheeler. The reason it is called cabover is because the cab resides over the engine (cab over engine) hints the name “cabover”. A chevrolet COE is a truck with a cabover design

Regular cab: a regular cab truck is typically a 1500 to 5500 truck that has only 2 doors, and 2 seats. A 1989 chevrolet silverado 1500 regular cab is a truck with a regular cab

Extended cab: an extended cab truck is typically a 1500 to 5500 truck with 3 doors, these trucks typically have fold down seats in the back. A truck with an extended cab is a 1989 chevrolet silverado 1500 extended cab

Crew cab: a crew cab truck is typically a 1500 to 5500 truck with 4 doors, a truck with a crew cab is a 2025 toyota tundra